Quotable Mathematics

"Since the ellipse is a closed curve it has a total length, λ say, and therefore f(l + λ) = f(l). The elliptic function f is periodic, ...

"Engineers have sought to minimize the effects of noise in electronic circuits and communication systems. But recent research has estab...

"Since a given system can never of its own accord go over into another equally probable state but into a more probable one, it is likew...